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Tomaz de Castro QJ, Araujo CM, Watai PY, de Castro E Silva SS, de Lima WG, Becker LK, Locatelli J, Guimarães HN, Grabe-Guimarães A. Effects of physical exercise combined with captopril or losartan on left ventricular hypertrophy of hypertensive rats. Clin Exp Hypertens 2021; 43:536-549. [PMID: 33870805 DOI: 10.1080/10641963.2021.1907399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: Left ventricular hypertrophy (LVH) is an endpoint of hypertensive cardiac alterations. Renin-angiotensin-aldosterone system (RAAS) blockers are among the most effective on LVH regression. Physical exercise combined to antihypertensive drug contributes to arterial pressure (AP) control and LVH prevention. We evaluated the effects of physical exercise combined to captopril or losartan during eight weeks for spontaneously hypertensive rats (SHR) on some cardiac parameters.Methods: SHR (n=5-6 per group) were sedentary or trained 5 days a week in treadmill during 8 weeks; and they were treated with daily oral captopril (12.5, 25, or 50mg/kg), losartan (2.5, 5, or 10mg/kg), or vehicle. At the end, it was obtained systolic AP (SAP), electrocardiogram (ECG), and hearts metalloproteinase 2 (MMP-2) activity and histology.Results: Captopril 25 and 50 mg/kg, and losartan 10 mg/kg lowered SAP of sedentary and trained SHR. Losartan 5 mg/kg combined with physical exercise also lowered SAP. Combined with exercise, captopril 50 mg/kg lowered 13.6% of QT interval, 14.2% of QTc interval, and 22.8% of Tpeak-Tend compared to sedentary SHR. Losartan 5 and 10mg/kg lowered QT interval of sedentary and trained SHR. Losartan 2.5, 5 and 10mg/kg combined with physical exercise lowered respectively 25.4%, 24.8%, and 31.8% of MMP-2 activity. Losartan (10mg/kg) combined with exercise reduced cardiomyocyte diameter.Conclusion: These data support the hypothesis of physical exercise combined with RAAS blockers could improve the benefits on hypertensive LVH treatment.
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Affiliation(s)
| | - Carolina Morais Araujo
- Pharmaceutical Science Program (CiPharma), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Patrícia Yoshie Watai
- Pharmaceutical Science Program (CiPharma), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | | | | | | | - Jamille Locatelli
- Sports Center (CEDUFOP), Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Homero Nogueira Guimarães
- Department of Electrical Engineering, Federal University of Minas Gerais, Belo Horizonte,Minas Gerais, Brazil
| | - Andrea Grabe-Guimarães
- Pharmaceutical Science Program (CiPharma), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
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Amancio GDCS, Grabe-Guimarães A, Haikel D, Moreau J, Barcellos NMS, Lacampagne A, Matecki S, Cazorla O. Effect of pyridostigmine on in vivo and in vitro respiratory muscle of mdx mice. Respir Physiol Neurobiol 2017. [PMID: 28624507 DOI: 10.1016/j.resp.2017.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The current work was conducted to verify the contribution of neuromuscular transmission defects at the neuromuscular junction to Duchenne Muscular Dystrophy disease progression and respiratory dysfunction. We tested pyridostigmine and pyridostigmine encapsulated in liposomes (liposomal PYR), an acetylcholinesterase inhibitor to improve muscular contraction on respiratory muscle function in mdx mice at different ages. We evaluated in vivo with the whole-body plethysmography, the ventilatory response to hypercapnia, and measured in vitro diaphragm strength in each group. Compared to C57BL10 mice, only 17 and 22 month-old mdx presented blunted ventilatory response, under normocapnia and hypercapnia. Free pyridostigmine (1mg/kg) was toxic to mdx mice, unlike liposomal PYR, which did not show any side effect, confirming that the encapsulation in liposomes is effective in reducing the toxic effects of this drug. Treatment with liposomal PYR, either acute or chronic, did not show any beneficial effect on respiratory function of this DMD experimental model. The encapsulation in liposomes is effective to abolish toxic effects of drugs.
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Affiliation(s)
- Gabriela de Cássia Sousa Amancio
- Laboratory of Experimental Pharmacology, CiPharma, Pharmacy School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Andrea Grabe-Guimarães
- Laboratory of Experimental Pharmacology, CiPharma, Pharmacy School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
| | - Dridi Haikel
- PHYMEDEXP, INSERM U1046, CNRS UMR9214, Université de Montpellier, CHRU Montpellier, Montpellier, France
| | - Johan Moreau
- PHYMEDEXP, INSERM U1046, CNRS UMR9214, Université de Montpellier, CHRU Montpellier, Montpellier, France
| | - Neila Marcia Silva Barcellos
- Laboratory of Experimental Pharmacology, CiPharma, Pharmacy School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Alain Lacampagne
- PHYMEDEXP, INSERM U1046, CNRS UMR9214, Université de Montpellier, CHRU Montpellier, Montpellier, France
| | - Stefan Matecki
- PHYMEDEXP, INSERM U1046, CNRS UMR9214, Université de Montpellier, CHRU Montpellier, Montpellier, France
| | - Olivier Cazorla
- PHYMEDEXP, INSERM U1046, CNRS UMR9214, Université de Montpellier, CHRU Montpellier, Montpellier, France
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Sugasini D, Lokesh BR. Enhanced incorporation of docosahexaenoic acid in serum, heart, and brain of rats given microemulsions of fish oil. Mol Cell Biochem 2013; 382:203-16. [DOI: 10.1007/s11010-013-1736-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/14/2013] [Indexed: 11/29/2022]
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Souza ACM, Grabe-Guimarães A, Souza J, Botacim WE, Almeida TM, Frézard FJG, Silva Barcellos NM. Development and characterization of multilamellar liposomes containing pyridostigmine. Pharm Dev Technol 2013; 19:454-9. [DOI: 10.3109/10837450.2013.795166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Maciel NR, Reis PG, Kato KC, Vidal AT, Guimarães HN, Frézard F, Silva-Barcellos NM, Grabe-Guimarães A. Reduced cardiovascular alterations of tartar emetic administered in long-circulating liposomes in rats. Toxicol Lett 2010; 199:234-8. [DOI: 10.1016/j.toxlet.2010.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 09/03/2010] [Accepted: 09/06/2010] [Indexed: 11/29/2022]
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